PDA

View Full Version : Wec Le Mans Repair Log



VectorGlow
10th May 2009, 09:42 PM
Symptom: No track markings being being drawn (track was drawn, just no white lines down the middle, no horizontal strips and no intermittent black areas on the kerb)
Cure: Bad outputs on the 74LS151 at location 10E on the top board

Womble
10th May 2009, 10:32 PM
Blimey - you have been busy - I can provide a photo for this one tho.

Dodgy LS151 at 10E gives this effect...

http://i40.photobucket.com/albums/e230/Womble76/DSCN4723.jpg

That was the last of many faults on Scratcha's board back in Feb

http://www.aussiearcade.com/showthread.php?t=12419&page=4 (http://http://www.aussiearcade.com/showthread.php?t=12419&page=4)

Quite a pleasing fix that one too, never got round to moving it to the repair log section tho. :)

Welcome to AA by the way - where abouts in the UK are you from? I am originally from Cambridge/Newmarket area.

scratcha
10th May 2009, 10:34 PM
Quite a pleasing fix that one too, never got round to moving it to the repair log section tho.[/QUOTE]

Never got round to posting a video of the working game neither. But it is working a treat....

Womble
10th May 2009, 10:35 PM
Haha - good to hear, its peppered with Fujitsu chips, so I wondered how long it would stay up. :D